1
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Bounoua N, Cetinkaya A, Piskin E, Kaya SI, Ozkan SA. The sensor applications for prostate and lung cancer biomarkers in terms of electrochemical analysis. Anal Bioanal Chem 2024; 416:2277-2300. [PMID: 38279011 DOI: 10.1007/s00216-024-05134-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/24/2023] [Accepted: 01/09/2024] [Indexed: 01/28/2024]
Abstract
Prostate and lung cancers are the most common types of cancer and affect a large part of the population around the world, causing deaths. Therefore, the rapid identification of cancer can profoundly impact reducing cancer-related death rates and protecting human lives. Significant resources have been dedicated to investigating new methods for early disease detection. Cancer biomarkers encompass various biochemical entities, including nucleic acids, proteins, sugars, small metabolites, cytogenetic and cytokinetic parameters, and whole tumor cells in bodily fluids. These tools can be utilized for various purposes, such as risk assessment, diagnosis, prognosis, treatment efficacy, toxicity evaluation, and predicting a return. Due to these versatile and critical purposes, there are widespread studies on the development of new, sensitive, and selective approaches for the determination of cancer biomarkers. This review illustrates the significant lung and prostate cancer biomarkers and their determination utilizing electrochemical sensors, which have the advantage of improved sensitivity, low cost, and simple analysis. Additionally, approaches such as improving sensitivity with nanomaterials and ensuring selectivity with MIPs are used to increase the performance of the sensor. This review aims to overview the most recent electrochemical biosensor applications for determining vital biomarkers of prostate and lung cancers in terms of nanobiosensors and molecularly imprinted polymer (MIP)-based biosensors.
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Affiliation(s)
- Nadia Bounoua
- Department of Exact Sciences, Laboratory of the Innovation Sponsorship and the Emerging Institution for Graduates of Higher Education of Sustainable Development and Dealing with Emerging Conditions, Normal Higher School of Bechar, Bechar, Algeria
- Laboratory of Chemical and Environmental Science (LCSE), 8000, Bechar, Algeria
| | - Ahmet Cetinkaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
- Graduate School of Health Sciences, Ankara University, Ankara, Turkey
| | - Ensar Piskin
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
- Graduate School of Health Sciences, Ankara University, Ankara, Turkey
| | - S Irem Kaya
- Department of Analytical Chemistry, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey.
| | - Sibel A Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey.
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2
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Deng M, Yang H, Zhang H, Li C, Chen J, Tang W, Wang X, Chen Z, Li J. Portable and Rapid Dual-Biomarker Detection Using Solution-Gated Graphene Field Transistors in the Accurate Diagnosis of Prostate Cancer. Adv Healthc Mater 2024; 13:e2302117. [PMID: 37922499 DOI: 10.1002/adhm.202302117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/29/2023] [Indexed: 11/05/2023]
Abstract
Prostate-specific antigen (PSA) is the common serum-relevant biomarker for early prostate cancer (PCa) detection in clinical diagnosis. However, it is difficult to accurately diagnose PCa in the early stage due to the low specificity of PSA. Herein, a new solution-gated graphene field transistor (SGGT) biosensor with dual-gate for dual-biomarker detection is designed. The sensing mechanism is that the designed aptamers immobilized on the surface of the gate electrodes can capture PSA and sarcosine (SAR) biomolecules and induce the capacitance changes of the electric double layers of SGGT. The limit of detections of PSA and SAR biomarkers can reach 0.01 fg mL-1 , which is three-to-four orders of magnitude lower than previously reported assays. The detection time of PSA and SAR is ≈4.5 and ≈13 min, which is significantly faster than the detection time (1-2 h) of conventional methods. The clinical serum samples testing demonstrates that the biosensor can distinguish the PCa patients from the control group and the diagnosis accuracy can reach 100%. The SGGT biosensor can be integrated into the portable platform and the diagnostic results can directly display on the smartphone/Pad. Therefore, the integrated portable platform of the biosensor can distinguish cancer types through the dual-biomarker detection.
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Affiliation(s)
- Minghua Deng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
- College of Computer and Information Engineering, Hubei Normal University, Huangshi, 435002, P. R. China
| | - Huan Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Huibin Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Chaoqian Li
- College of Computer and Information Engineering, Hubei Normal University, Huangshi, 435002, P. R. China
| | - Jingqiu Chen
- School of Computer Science and Information Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Wei Tang
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xianbao Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Zhaowei Chen
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, 430060, P. R. China
| | - Jinhua Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
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3
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Wang N, Yang J, Luo Z, Qin D, Wu Y, Deng B. Electrochemiluminescence immunosensor based on Cu 3(PO 4) 2 hybrid nanoflowers as a novel luminophore for the sensitive detection of prostate-specific antigen. Mikrochim Acta 2023; 190:389. [PMID: 37700114 DOI: 10.1007/s00604-023-05966-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/26/2023] [Indexed: 09/14/2023]
Abstract
Copper phosphate hybrid nanoflowers (Cu3(PO4)2HNFs) were demonstrated to produce cathodic ECL emission in the presence of potassium persulfate (K2S2O8) and then used as a carrier due to their large specific surface area. AgNPs modified on Cu3(PO4)2HNFs provided more binding sites for immobilizing secondary antibodies and accelerating the electron transfer rate to enhance the ECL signal. In addition, FONDs-Au was used to capture primary antibodies due to its good biocompatibility and large specific surface area. A sandwich electrochemiluminescence (ECL) immunosensor based on copper phosphate hybrid nanoflower/Ag nanoparticle (Cu3(PO4)2HNFs@Ag) composite and Au NPs-functionalized Fe2O3 nanodendrites (FONDs-Au) was constructed to detect prostate-specific antigen (PSA) in real samples. Under optimal conditions, the constructed sandwich ECL immunosensor was sensitive to PSA with a detection limit of 0.037 pg/mL (S/N = 3), a linear detection concentration range of 0.0001-50 ng/mL, and a recovery range of 97.33-102.5%. This immunosensor is expected to provide a method to detect PSA or other biomarkers.
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Affiliation(s)
- Na Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Juan Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Zhi Luo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Dongmiao Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Yusheng Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Biyang Deng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
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Hu X, Liao J, Shan H, He H, Du Z, Guan M, Hu J, Li J, Gu B. A novel carboxyl polymer-modified upconversion luminescent nanoprobe for detection of prostate-specific antigen in the clinical gray zonebase by flow immunoassay strip. Methods 2023; 215:10-16. [PMID: 37169320 DOI: 10.1016/j.ymeth.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/04/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Prostate specific antigen (PSA) is a widely-used biomarker for the diagnosis, screening, and prognosis of prostate cancer (PCa). It is critical to develop a rapid and convenient method to accurately detect PSA levels, especially when the PSA levels are in the clinical gray area of 4-10 ng/mL. We developed a novel upconversion nanoparticle (UCNP)-based fluorescence lateral flow test strip for qualitatively and quantitatively detecting PSA. The carboxyl group-modified UCNPs (UCNP-COOH) were labeled with anti-PSA antibodies via 1-ethyl-3-(3-(dimethylamino)propyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) as labeling probes to recognize PSA. The fluorescence intensity of the UCNP-probe was then measured with a laser fluorescence scanner. A total of 1397 serum and 20 fingertip blood samples were collected to validate the UCNP strip. A reliable correlation between the area ratio (TC), reflecting the fluorescence intensity of the test/control line, and the PSA concentration was observed (r = 0.9986). The dose-dependent luminescence enhancement showed good linearity in the PSA concentration range from 0.1 to 100.0 ng/mL with a detection limit of 0.1 ng/mL. Our UCNP POCT strip demonstrated excellent accuracy, anti-interference and stability in the gray zone (4-10 ng/mL) of PSA clinical application and outperformed other PSA test strips. The UCNP strip showed good consistency with the Roche chemiluminescence assay in 1397 serum samples. It also showed good performance for PSA detection using fingertip blood samples. This novel UCNP-based test strip could be a sensitive and reliable POCT assay to detect PSA, facilitating the diagnosis and surveillance of PCa.
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Affiliation(s)
- Xuejiao Hu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Jianfeng Liao
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Huizhuang Shan
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China
| | - Hao He
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Zhongbo Du
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Ming Guan
- Shenzhen Light Life Technology Co., Ltd., Shenzhen 518107, China
| | - Jiwen Hu
- Central Medical Laboratory, Shenzhen Luohu Hospital, Shenzhen 518001, China
| | - Jing Li
- Laboratory Medicine, Panzhihua Central Hospital, Panzhihua 617026, China.
| | - Bing Gu
- Department of Clinical Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510000, China.
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5
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He W, Liu L, Cao Z, Lin Y, Tian Y, Zhang Q, Zhou C, Ye X, Cui T. Shrink polymer based electrochemical sensor for point-of-care detection of prostate-specific antigen. Biosens Bioelectron 2023; 228:115193. [PMID: 36906988 DOI: 10.1016/j.bios.2023.115193] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
There is a growing but unmet need for point-of-care detection of prostate-specific antigen (PSA) in body fluid which may facilitate early diagnosis and therapy of prostate cancer in a cost-effective and user-friendly way. Low sensitivity and narrow detection range limits applications of point-of-care testing in practice. Here, an immunosensor is first presented based on shrink polymer and integrated into a miniaturized electrochemical platform for detecting PSA in clinical samples. The sensing electrode was prepared by sputtering a gold film on shrink polymer, followed by heating to shrink the electrode to a small size with wrinkles from nano-scale to micro-scale. These wrinkles can be directly regulated by the thickness of the gold film with high specific areas for enhancement of antigen-antibody binding (3.9 times). A distinct difference between electrochemical active surface area (EASA) and response to PSA of shrink electrodes was observed and discussed. The electrode was treated with air plasma and modified with self-assembled graphene to further enhance the sensor's sensitivity (10.4 times). The shrink sensor with gold 200 nm thick integrated into the portable system was validated by a label-free immunoassay for detection of PSA in 20 μL serum within 35 mins. It exhibited a limit of detection of 0.38 fg/mL, the lowest among label-free PSA sensors, and a wide linear response from 10 fg/mL to 1000 ng/mL. Moreover, the sensor demonstrated reliable assay results in clinical serums, comparable to the commercial chemiluminescence instrument, confirming its feasibility for clinical diagnosis.
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Affiliation(s)
- Wenzheng He
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China
| | - Liying Liu
- Department of Urology, Jilin Cancer Hospital, Jilin Province, Changchun, 130012, China
| | - Zeyuan Cao
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China
| | - Yang Lin
- Department of Urology, Jilin Cancer Hospital, Jilin Province, Changchun, 130012, China
| | - Yuxin Tian
- Department of Urology, Jilin Cancer Hospital, Jilin Province, Changchun, 130012, China
| | - Qifu Zhang
- Department of Urology, Jilin Cancer Hospital, Jilin Province, Changchun, 130012, China
| | - Changdong Zhou
- Department of Urology, Jilin Cancer Hospital, Jilin Province, Changchun, 130012, China.
| | - Xiongying Ye
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China.
| | - Tianhong Cui
- Department of Mechanical Engineering, University of Minnesota, 111 Church Street S.E., Minneapolis, MN, 55455, USA.
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6
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Özyurt C, Uludağ İ, Sezgintürk MK. An ultrasensitive and disposable electrochemical aptasensor for prostate-specific antigen (PSA) detection in real serum samples. Anal Bioanal Chem 2023; 415:1123-1136. [PMID: 36155829 DOI: 10.1007/s00216-022-04309-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/22/2022] [Accepted: 08/29/2022] [Indexed: 02/07/2023]
Abstract
In this study, we constructed a disposable indium tin oxide polyethylene terephthalate film (ITO-PET)-based electrochemical aptasensor for analyzing prostate-specific antigen (PSA), one of the most important biomarkers of prostate cancer. Because of their clinical importance, building PSA biosensing systems with high sensitivity and stability is essential. However, it still presents significant difficulties, such as low detection limits. We designed a platform to covalently bind the amino-terminated aptamer by modifying the ITO-PET surface with carboxyethylsilanetriol (CTES) to obtain a self-assembled monolayer (SAM). We also evaluated the potential for use in real human serum samples by investigating the optimal operating conditions and analytical performance characteristics of the developed biosensor. The design we present here exhibits excellent precision, with a limit of detection (LOD) as low as 8.74 fg/mL PSA. The broad linear detection range of the biosensor under optimal conditions was determined as 1.0-1500 fg/mL. The dissociation constant (Kd) for the aptamer was also calculated as 46.28 ± 5.63 nM by evaluating the impedimetric response as a function of PSA concentration. The aptasensor displayed considerable repeatability (1.3% RSD) and reproducibility (7.51% RSD) and good storage stability (98.34% of the initial activity for 8 weeks). Additionally, we demonstrated that the technique we developed was quite efficient in estimating the kinetics of aptamer-analyte interactions by determining the Kd and single-frequency impedance (SFI) data. In conclusion, we proposed a selective and sensitive biosensor with the potential for clinical application and superior performance in real serum samples.
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Affiliation(s)
- Canan Özyurt
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - İnci Uludağ
- Bioengineering Department, Engineering Faculty, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Mustafa Kemal Sezgintürk
- Bioengineering Department, Engineering Faculty, Çanakkale Onsekiz Mart University, Çanakkale, Turkey.
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7
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Maeda T, Kanamori R, Choi YJ, Taki M, Noda T, Sawada K, Takahashi K. Bio-Interface on Freestanding Nanosheet of Microelectromechanical System Optical Interferometric Immunosensor for Label-Free Attomolar Prostate Cancer Marker Detection. SENSORS 2022; 22:s22041356. [PMID: 35214266 PMCID: PMC8963056 DOI: 10.3390/s22041356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/29/2022] [Accepted: 02/06/2022] [Indexed: 11/24/2022]
Abstract
Various biosensors that are based on microfabrication technology have been developed as point-of-care testing devices for disease screening. The Fabry–Pérot interferometric (FPI) surface-stress sensor was developed to improve detection sensitivity by performing label-free biomarker detection as a nanomechanical deflection of a freestanding membrane to adsorb the molecules. However, chemically functionalizing the freestanding nanosheet with excellent stress sensitivity for selective molecular detection may cause the surface chemical reaction to deteriorate the nanosheet quality. In this study, we developed a minimally invasive chemical functionalization technique to create a biosolid interface on the freestanding nanosheet of a microelectromechanical system optical interferometric surface-stress immunosensor. For receptor immobilization, glutaraldehyde cross-linking on the surface of the amino-functionalized parylene membrane reduced the shape variation of the freestanding nanosheet to 1/5–1/10 of the previous study and achieved a yield of 95%. In addition, the FPI surface-stress sensor demonstrated molecular selectivity and concentration dependence for prostate-specific antigen with a dynamic range of concentrations from 100 ag/mL to 1 µg/mL. In addition, the minimum limit of detection of the proposed sensor was 2,000,000 times lower than that of the conventional nanomechanical cantilevers.
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Affiliation(s)
- Tomoya Maeda
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
| | - Ryoto Kanamori
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
| | - Yong-Joon Choi
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
| | - Miki Taki
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
| | - Toshihiko Noda
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
- Electronics Inspired-Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi 441-8580, Japan
| | - Kazuaki Sawada
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
- Electronics Inspired-Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Toyohashi 441-8580, Japan
| | - Kazuhiro Takahashi
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan; (T.M.); (R.K.); (Y.-J.C.); (M.T.); (T.N.); (K.S.)
- Correspondence: ; Tel.: +81-532-44-6740
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8
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Hu Q, Chen G, Han J, Wang L, Cui X, Wang P, Chang C, Fu Q. Determination of sarcosine based on magnetic cross-linked enzyme aggregates for diagnosis of prostate cancer. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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9
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Aydın EB, Aydın M, Sezgintürk MK. Ultrasensitive and Selective Impedimetric Determination of Prostate Specific Membrane Antigen Based on Di-Succinimide Functionalized Polythiophene Covered Cost-Effective Indium Tin Oxide. Macromol Biosci 2021; 21:e2100173. [PMID: 34263542 DOI: 10.1002/mabi.202100173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/26/2021] [Indexed: 11/09/2022]
Abstract
A new and ultrasensitive impedimetric biosensor fabricated by using conjugated di-succinimide substituted polythiophene (P(ThidiSuc)) polymer modified indium tin oxide electrode is developed for the first time to detect the prostate specific membrane antigen (PSMA). The polymer P(Thi-diSuc) is synthesized by using a simple way and used in the fabrication of the proposed biosensor. The synthesized polymer contains di-succinimide groups, which offers covalent immobilization of PSMA specific antibodies. The developed strategy shortens the biosensor fabrication steps, because these active groups bind covalently to the amino ends of PSMA specific antibodies and this reaction does not require any crosslinking agent. Various characterization studies like impedimetric and voltammetric measurements, and morphological analyses are utilized to confirm the successful development of the biosensor. Under optimum conditions, the biosensing ability of the PSMA determination has a wide linear determination range from 0.015 to 14.4 pg mL-1 , as well as a low limit of detection of 6.4 fg mL-1 and a high sensitivity of 1.36 kohm pg-1 mL cm-2 . Furthermore, the proposed biosensor is able to measure the PSMA antigen in real human serums, which offers that it is a simple, low-cost, and sensitive tool with excellent potential for application in the quantification of PSMA.
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Affiliation(s)
- Elif Burcu Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ, 59100, Turkey
| | - Muhammet Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ, 59100, Turkey
| | - Mustafa Kemal Sezgintürk
- Faculty of Engineering, Bioengineering Department, Çanakkale Onsekiz Mart University, Çanakkale, 17020, Turkey
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10
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Li QS, Zhang XL, Yang JH, Ma YH, Cai L, Yang Y, Shi JG, Dong WF. Extremely sensitive multi-order mode refractive index sensor using TiO 2 nanograss film and weakly bounded waveguide modes. OPTICS EXPRESS 2021; 29:13520-13529. [PMID: 33985085 DOI: 10.1364/oe.421691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
An extremely sensitive multi-order mode refractive index (RI) sensor was fabricated by coupling titanium dioxide nanograss film coated FTO conductive glass with Kretschmann prism. Both calculation and experimental studies were carried out. Theoretical analysis by employing resonant waveguide modes indicated that the maximum sensitivity could be achieved when the mode worked at the weakly-bounded condition. The experimental results showed that for p-polarized and s-polarized light, the sensor exhibited a maximum RI sensitivity of 2938.21 nm/RI unit (RIU) and 1484.39 nm/RIU in the 1st order mode, respectively. Its maximum figure of merit was as high as 77.77. The proposed sensor is promising to be applied in environmental monitoring, immune analysis, nucleic acid test, etc.
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11
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Dowlatshahi S, Abdekhodaie MJ. Electrochemical prostate-specific antigen biosensors based on electroconductive nanomaterials and polymers. Clin Chim Acta 2021; 516:111-135. [PMID: 33545110 DOI: 10.1016/j.cca.2021.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 01/11/2023]
Abstract
Prostate cancer (PCa), the second most malignant neoplasm in men, is also the fifth leading cause of cancer-related deaths in men globally. Unfortunately, this malignancy remains largely asymptomatic until late-stage emergence when treatment is limited due to the lack of effective metastatic PCa therapeutics. Due to these limitations, early PCa detection through prostate-specific antigen (PSA) screening has become increasingly important, resulting in a more than 50% decrease in mortality. Conventional assays for PSA detection, such as enzyme-linked immunosorbent assay (ELISA), are labor intensive, relatively expensive, operator-dependent and do not provide adequate sensitivity. Electrochemical biosensors overcome these limitations because they are rapid, cost-effective, simple to use and ultrasensitive. This article reviews electrochemical PSA biosensors using electroconductive nanomaterials such as carbon-, metal-, metal oxide- and peptide-based nanostructures, as well as polymers to significantly improve conductivity and enhance sensitivity. Challenges associated with the development of these devices are discussed thus providing additional insight into their analytic strength as well as their potential use in early PCa detection.
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Affiliation(s)
- Sayeh Dowlatshahi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Yeates School of Graduate Studies, Ryerson University, Toronto, Ontario, Canada.
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12
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Malecka K, Mikuła E, Ferapontova EE. Design Strategies for Electrochemical Aptasensors for Cancer Diagnostic Devices. SENSORS 2021; 21:s21030736. [PMID: 33499136 PMCID: PMC7866130 DOI: 10.3390/s21030736] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
Improved outcomes for many types of cancer achieved during recent years is due, among other factors, to the earlier detection of tumours and the greater availability of screening tests. With this, non-invasive, fast and accurate diagnostic devices for cancer diagnosis strongly improve the quality of healthcare by delivering screening results in the most cost-effective and safe way. Biosensors for cancer diagnostics exploiting aptamers offer several important advantages over traditional antibodies-based assays, such as the in-vitro aptamer production, their inexpensive and easy chemical synthesis and modification, and excellent thermal stability. On the other hand, electrochemical biosensing approaches allow sensitive, accurate and inexpensive way of sensing, due to the rapid detection with lower costs, smaller equipment size and lower power requirements. This review presents an up-to-date assessment of the recent design strategies and analytical performance of the electrochemical aptamer-based biosensors for cancer diagnosis and their future perspectives in cancer diagnostics.
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Affiliation(s)
- Kamila Malecka
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima Str. 10, 10-748 Olsztyn, Poland; (K.M.); (E.M.)
| | - Edyta Mikuła
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima Str. 10, 10-748 Olsztyn, Poland; (K.M.); (E.M.)
| | - Elena E. Ferapontova
- Interdisciplinary Nanoscience Center (iNANO), Faculty of Science and Technology, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
- Correspondence: ; Tel.: +45-87156703
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13
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Sardini E, Serpelloni M, Tonello S. Printed Electrochemical Biosensors: Opportunities and Metrological Challenges. BIOSENSORS 2020; 10:E166. [PMID: 33158129 PMCID: PMC7694196 DOI: 10.3390/bios10110166] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022]
Abstract
Printed electrochemical biosensors have recently gained increasing relevance in fields ranging from basic research to home-based point-of-care. Thus, they represent a unique opportunity to enable low-cost, fast, non-invasive and/or continuous monitoring of cells and biomolecules, exploiting their electrical properties. Printing technologies represent powerful tools to combine simpler and more customizable fabrication of biosensors with high resolution, miniaturization and integration with more complex microfluidic and electronics systems. The metrological aspects of those biosensors, such as sensitivity, repeatability and stability, represent very challenging aspects that are required for the assessment of the sensor itself. This review provides an overview of the opportunities of printed electrochemical biosensors in terms of transducing principles, metrological characteristics and the enlargement of the application field. A critical discussion on metrological challenges is then provided, deepening our understanding of the most promising trends in order to overcome them: printed nanostructures to improve the limit of detection, sensitivity and repeatability; printing strategies to improve organic biosensor integration in biological environments; emerging printing methods for non-conventional substrates; microfluidic dispensing to improve repeatability. Finally, an up-to-date analysis of the most recent examples of printed electrochemical biosensors for the main classes of target analytes (live cells, nucleic acids, proteins, metabolites and electrolytes) is reported.
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Affiliation(s)
- Emilio Sardini
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (E.S.); (M.S.)
| | - Mauro Serpelloni
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (E.S.); (M.S.)
| | - Sarah Tonello
- Department of Information Engineering, University of Padova, Via Gradenigo 6, 35131 Padova, Italy
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14
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Ortiz-Riaño EJ, Avila-Huerta MD, Mancera-Zapata DL, Morales-Narváez E. Microwell plates coated with graphene oxide enable advantageous real-time immunosensing platform. Biosens Bioelectron 2020; 165:112319. [DOI: 10.1016/j.bios.2020.112319] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 05/04/2020] [Accepted: 05/20/2020] [Indexed: 01/02/2023]
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15
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Reddy KK, Bandal H, Satyanarayana M, Goud KY, Gobi KV, Jayaramudu T, Amalraj J, Kim H. Recent Trends in Electrochemical Sensors for Vital Biomedical Markers Using Hybrid Nanostructured Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902980. [PMID: 32670744 PMCID: PMC7341105 DOI: 10.1002/advs.201902980] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/12/2020] [Indexed: 05/09/2023]
Abstract
This work provides a succinct insight into the recent developments in electrochemical quantification of vital biomedical markers using hybrid metallic composite nanostructures. After a brief introduction to the biomarkers, five types of crucial biomarkers, which require timely and periodical monitoring, are shortlisted, namely, cancer, cardiac, inflammatory, diabetic and renal biomarkers. This review emphasizes the usage and advantages of hybrid nanostructured materials as the recognition matrices toward the detection of vital biomarkers. Different transduction methods (fluorescence, electrophoresis, chemiluminescence, electrochemiluminescence, surface plasmon resonance, surface-enhanced Raman spectroscopy) reported for the biomarkers are discussed comprehensively to present an overview of the current research works. Recent advancements in the electrochemical (amperometric, voltammetric, and impedimetric) sensor systems constructed with metal nanoparticle-derived hybrid composite nanostructures toward the selective detection of chosen vital biomarkers are specifically analyzed. It describes the challenges involved and the strategies reported for the development of selective, sensitive, and disposable electrochemical biosensors with the details of fabrication, functionalization, and applications of hybrid metallic composite nanostructures.
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Affiliation(s)
- K. Koteshwara Reddy
- Smart Living Innovation Technology CentreDepartment of Energy Science and TechnologyMyongji UniversityYonginGyeonggi‐do17058Republic of Korea
- Laboratory of Materials ScienceInstituto de Química de Recursos NaturalesUniversidad de TalcaP.O. Box 747Talca3460000Chile
| | - Harshad Bandal
- Smart Living Innovation Technology CentreDepartment of Energy Science and TechnologyMyongji UniversityYonginGyeonggi‐do17058Republic of Korea
| | - Moru Satyanarayana
- Department of ChemistryNational Institute of Technology WarangalWarangalTelangana506004India
| | - Kotagiri Yugender Goud
- Department of ChemistryNational Institute of Technology WarangalWarangalTelangana506004India
| | | | - Tippabattini Jayaramudu
- Laboratory of Materials ScienceInstituto de Química de Recursos NaturalesUniversidad de TalcaP.O. Box 747Talca3460000Chile
| | - John Amalraj
- Laboratory of Materials ScienceInstituto de Química de Recursos NaturalesUniversidad de TalcaP.O. Box 747Talca3460000Chile
| | - Hern Kim
- Smart Living Innovation Technology CentreDepartment of Energy Science and TechnologyMyongji UniversityYonginGyeonggi‐do17058Republic of Korea
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16
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Mauriz E. Low-Fouling Substrates for Plasmonic Sensing of Circulating Biomarkers in Biological Fluids. BIOSENSORS-BASEL 2020; 10:bios10060063. [PMID: 32531908 PMCID: PMC7345924 DOI: 10.3390/bios10060063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 12/20/2022]
Abstract
The monitoring of biomarkers in body fluids provides valuable prognostic information regarding disease onset and progression. Most biosensing approaches use noninvasive screening tools and are conducted in order to improve early clinical diagnosis. However, biofouling of the sensing surface may disturb the quantification of circulating biomarkers in complex biological fluids. Thus, there is a great need for antifouling interfaces to be designed in order to reduce nonspecific adsorption and prevent inactivation of biological receptors and loss of sensitivity. To address these limitations and enable their application in clinical practice, a variety of plasmonic platforms have been recently developed for biomarker analysis in easily accessible biological fluids. This review presents an overview of the latest advances in the design of antifouling strategies for the detection of clinically relevant biomarkers on the basis of the characteristics of biological samples. The impact of nanoplasmonic biosensors as point-of-care devices has been examined for a wide range of biomarkers associated with cancer, inflammatory, infectious and neurodegenerative diseases. Clinical applications in readily obtainable biofluids such as blood, saliva, urine, tears and cerebrospinal and synovial fluids, covering almost the whole range of plasmonic applications, from surface plasmon resonance (SPR) to surface-enhanced Raman scattering (SERS), are also discussed.
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Affiliation(s)
- Elba Mauriz
- Department of Nursing and Physiotherapy, Universidad de León, Campus de Vegazana, s/n, 24071 León, Spain;
- Institute of Food Science and Technology (ICTAL), La Serna 58, 24007 León, Spain
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17
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Sensitivity and reproducibility improvements in a human plasma immunoassay with removal of clotting factors. Anal Biochem 2019; 585:113410. [PMID: 31473245 DOI: 10.1016/j.ab.2019.113410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/07/2019] [Accepted: 08/28/2019] [Indexed: 11/22/2022]
Abstract
Interferences in human plasma immunoassay are severe challenge that affects the sensitivity and reproducibility of the assay. The clotting factor fibrinogen is a negatively charged protein and is one of the most common sources of interference in immunoassays, and its removal increases the sensitivity and reproducibility. Here, we present a highly sensitive and reproducible method for the detection of prostate specific antigen (PSA) in human plasma immunoassays. Protamine sulfate, a highly positively charged protein, was used to precipitate fibrinogen via ionic interaction to improve the sensitivity and reproducibility of human plasma immunoassay. In a sandwich ELISA for PSA using plasma and protamine-treated plasma samples, the limit of detection was improved from 413 pg/mL in plasma to 235 pg/mL in protamine-treated plasma samples, and the coefficient of variation known as a measure of reproducibility was significantly lowered by protamine treatment. The use of protamine sulfate in human plasma immunoassays for detection of PSA using quartz crystal microbalance (QCM) biosensors resulted in increased sensitivity and reproducibility by about 2-fold and 3-fold, respectively, relative to when not using protamine sulfate. Based on these results, protamine sulfate was the best choice to increase the sensitivity and reproducibility in immunoassays using plasma samples.
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Kim HM, Park JH, Lee SK. Fiber optic sensor based on ZnO nanowires decorated by Au nanoparticles for improved plasmonic biosensor. Sci Rep 2019; 9:15605. [PMID: 31666617 PMCID: PMC6821738 DOI: 10.1038/s41598-019-52056-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/11/2019] [Indexed: 01/21/2023] Open
Abstract
Fiber-optic-based localized surface plasmon resonance (FO-LSPR) sensors with three-dimensional (3D) nanostructures have been developed. These sensors were fabricated using zinc oxide (ZnO) nanowires and gold nanoparticles (AuNPs) for highly sensitive plasmonic biosensing. The main achievements in the development of the biosensors include: (1) an extended sensing area, (2) light trapping effect by nanowires, and (3) a simple optical system based on an optical fiber. The 3D nanostructure was fabricated by growing the ZnO nanowires on the cross-section of optical fibers using hydrothermal synthesis and via immobilization of AuNPs on the nanowires. The proposed sensor outputted a linear response according to refractive index changes. The 3D FO-LSPR sensor exhibited an enhanced localized surface plasmon resonance response of 171% for bulk refractive index changes when compared to the two-dimensional (2D) FO-LSPR sensors where the AuNPs are fixed on optical fiber as a monolayer. In addition, the prostate-specific antigen known as a useful biomarker to diagnose prostate cancer was measured with various concentrations in 2D and 3D FO-LSPR sensors, and the limits of detection (LODs) were 2.06 and 0.51 pg/ml, respectively. When compared to the 2D nanostructure, the LOD of the sensor with 3D nanostructure was increased by 404%.
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Affiliation(s)
- Hyeong-Min Kim
- Department of Electronics and Electrical Engineering, Dankook University, Yongin, 16890, South Korea
| | - Jae-Hyoung Park
- Department of Electronics and Electrical Engineering, Dankook University, Yongin, 16890, South Korea.
| | - Seung-Ki Lee
- Department of Electronics and Electrical Engineering, Dankook University, Yongin, 16890, South Korea.
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Wang C, Sun Y, Zhao Q. A sensitive thrombin-linked sandwich immunoassay for protein targets using high affinity phosphorodithioate modified aptamer for thrombin labeling. Talanta 2019; 207:120280. [PMID: 31594565 DOI: 10.1016/j.talanta.2019.120280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/14/2019] [Accepted: 08/17/2019] [Indexed: 02/07/2023]
Abstract
Thrombin and its aptamers have been well studied and widely used as models in aptamer based assays and sensors. Here we reported a thrombin-linked sandwich immunoassay for proteins to demonstrate new applications of thrombin and the aptamers, converting protein detection to analysis of thrombin label. In this assay, target protein was sandwiched by the capture antibody on a microplate and the biotinylated detection antibody. Thrombin bound to one biotinylated aptamer, and then the thrombin-labeled aptamer was attached on the sandwich complex through streptavidin-biotin interaction by using streptavidin as a linker. Thrombin catalyzed cleavage of fluorogenic peptide substrates, generating fluorescence signals for target detection. Among a few different anti-thrombin aptamers, the use of one nuclease resistant RNA aptamer having phosphorodithioate (PS2) modification on a specific backbone position enabled higher assay sensitivity due to its much higher affinity. This thrombin-linked sandwich immunoassay allowed detection of prostate-specific antigen (PSA) at 2 pM, an important protein related cancer disease, with high sensitivity and specificity. The strategy was general, and also enabled sensitive detection of botulinum neurotoxin type A (BoNTA) light chain, one toxin protein causing risk to human health. This assay combines advantages of antibody recognition, aptamer affinity labeling, high affinity of aptamers, and enzyme activity of thrombin. Labeling thrombin on the immunosandwich complex through simple affinity binding overcomes limitations of covalent conjugating enzyme on antibody in conventional immunoassay. This assay is promising in applications for protein detection.
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Affiliation(s)
- Chao Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Sun
- The People's Hospital of Peking University, Beijing, 100044, China
| | - Qiang Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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20
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Yazdani Z, Yadegari H, Heli H. A molecularly imprinted electrochemical nanobiosensor for prostate specific antigen determination. Anal Biochem 2019; 566:116-125. [DOI: 10.1016/j.ab.2018.11.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/31/2018] [Accepted: 11/21/2018] [Indexed: 11/30/2022]
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21
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Jiang Z, Zhao Y, Tian Y. Comparison of diagnostic efficacy by two urine PCA3 scores in prostate cancer patients undergoing repeat biopsies. MINERVA UROL NEFROL 2018; 71:373-380. [PMID: 30203935 DOI: 10.23736/s0393-2249.18.03093-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Urine prostate cancer gene 3 (PCA3) is significantly elevated in patients with prostate cancer and can be used for the diagnosis of prostate cancer, but its cutoff value is still controversial. EVIDENCE ACQUISITION We searched the database on urine PCA3 in the diagnosis of prostate cancer, such as Medline, Web of Science, the Cochrane Library and Embase. Meta-analysis was performed using the random effect model and the sensitivity, specificity, diagnostic odds ratio, and area under the ROC curve (SROC) were calculated. EVIDENCE SYNTHESIS Our meta-analysis included nine studies on PCA3 scores in a total of 1721 suspected prostate cancer patients. When urine PCA3 score was 20, we obtained sensitivity of 0.83, specificity of 0.40, diagnostic odds ratio of 3.11, and the area under the SROC curve was 0.6842 (Q value 0.6404). When urine PCA3 score was 35, we found a lower sensitivity of 0.66, a higher specificity of 0.63 and a relatively lower diagnostic odds ratio of 2.84. The area under the SROC curve was 0.6715, which was slightly lower than urine PCA3 score 20. CONCLUSIONS Our meta-analysis suggested that when the PCA3 score cutoff value was 20, the unnecessary puncture was reduced and obtained a higher diagnostic efficacy.
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Affiliation(s)
- Zhikui Jiang
- Department of Clinical Laboratory, Dahua Hospital, Shanghai, China -
| | - Ying Zhao
- Department of Clinical Laboratory, Dahua Hospital, Shanghai, China
| | - Yuxiang Tian
- Department of Clinical Laboratory, Dahua Hospital, Shanghai, China
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22
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Talamini L, Zanato N, Zapp E, Brondani D, Westphal E, Gallardo H, Vieira IC. Heparin-gold Nanoparticles and Liquid Crystal Applied in Label-free Electrochemical Immunosensor for Prostate-specific Antigen. ELECTROANAL 2017. [DOI: 10.1002/elan.201700651] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lucas Talamini
- Department of Chemistry; Federal University of Santa Catarina - Campus Florianópolis; 88040-900 Florianópolis, SC Brazil
| | - Nicole Zanato
- Department of Chemistry; Federal University of Santa Catarina - Campus Florianópolis; 88040-900 Florianópolis, SC Brazil
| | - Eduardo Zapp
- Department of Exact Sciences and Education; Federal University of Santa Catarina - Campus Blumenau; 89036-256 Blumenau, SC Brazil
| | - Daniela Brondani
- Department of Exact Sciences and Education; Federal University of Santa Catarina - Campus Blumenau; 89036-256 Blumenau, SC Brazil
| | - Eduard Westphal
- Department of Chemistry and Biology; Federal University of Technology - Paraná; Campus Curitiba 81280-340 Curitiba, PR Brazil
| | - Hugo Gallardo
- Department of Chemistry; Federal University of Santa Catarina - Campus Florianópolis; 88040-900 Florianópolis, SC Brazil
| | - Iolanda Cruz Vieira
- Department of Chemistry; Federal University of Santa Catarina - Campus Florianópolis; 88040-900 Florianópolis, SC Brazil
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Mao K, Yang Z, Li J, Zhou X, Li X, Hu J. A novel colorimetric biosensor based on non-aggregated Au@Ag core–shell nanoparticles for methamphetamine and cocaine detection. Talanta 2017; 175:338-346. [DOI: 10.1016/j.talanta.2017.07.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/22/2017] [Accepted: 07/01/2017] [Indexed: 10/19/2022]
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García-Cortés M, Fernández-Argüelles MT, Costa-Fernández JM, Sanz-Medel A. Sensitive prostate specific antigen quantification using dihydrolipoic acid surface-functionalized phosphorescent quantum dots. Anal Chim Acta 2017; 987:118-126. [PMID: 28916035 DOI: 10.1016/j.aca.2017.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/28/2017] [Accepted: 08/01/2017] [Indexed: 12/25/2022]
Abstract
Herein, high-quality Mn-doped ZnS quantum dots (QDs) have been synthesized using a facile approach directly in aqueous media. The surface of the obtained QDs was further modified by cap-exchange of the native cysteine shell with dihydrolipoic acid (DHLA) ligands resulting in nanocrystals with high water-stability having an intense phosphorescent signal. Covalent bioconjugation of the DHLA-coated nanoparticles with an anti-IgG antibody was then carried out. Interestingly the QD immunoprobe (QD-labelled antibodies) maintained an intense phosphorescence emission, without any significant spectral-shift (as compared to the free QDs). Coupling of an asymmetric flow field flow fractionation technique to an elemental mass spectrometry detection enabled the accurate determination of the efficiency of the bioconjugation reaction. The obtained nanoparticle-antibody bioconjugate was then applied to develop a quantitative sandwich-type phosphorescent immunoassay for Prostate Specific Antigen (PSA), and a limit of detection (LOD) of 17 pg mL-1 of PSA was achieved and allow to quantify such biomarker in samples within clinically relevant levels. Finally, the assay was validated for the quantification of PSA in the cellular media of prostate cancer cells. Obtained results proved the robustness of the proposed immunoassay based on long-lived phosphorescence measurements against eventual photoluminescent interferences significantly affecting the conventional short-lived fluorescence detection.
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Affiliation(s)
- Marta García-Cortés
- Department of Physical and Analytical Chemistry, University of Oviedo, Avda. Julián Clavería 8, Oviedo 33006, Spain
| | - María Teresa Fernández-Argüelles
- Department of Physical and Analytical Chemistry, University of Oviedo, Avda. Julián Clavería 8, Oviedo 33006, Spain; Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, 4715-330 Braga, Portugal.
| | - José M Costa-Fernández
- Department of Physical and Analytical Chemistry, University of Oviedo, Avda. Julián Clavería 8, Oviedo 33006, Spain.
| | - Alfredo Sanz-Medel
- Department of Physical and Analytical Chemistry, University of Oviedo, Avda. Julián Clavería 8, Oviedo 33006, Spain
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Ding X, Miao B, Gu Z, Wu B, Hu Y, Wang H, Zhang J, Wu D, Lu W, Li J. Highly sensitive extended gate-AlGaN/GaN high electron mobility transistor for bioassay applications. RSC Adv 2017. [DOI: 10.1039/c7ra10028k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
An extended gate-AlGaN/GaN high electron mobility transistor (EG-AlGaN/GaN HEMT) with a high sensitivity for bioassay has been developed.
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